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Study of Nonlinearity and Statistics of Photons in BTA High-Resolution Fiber-Optic Spectrograph Images

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Abstract

The nonlinearity of the transfer function of photon detection by a CCD receiver of an echelle fiber-optic spectrograph of high spectral resolution at the BTA SAO RAS is studied. Local analysis of signals in the image of the emission spectrum and correction of data are carried out.

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ACKNOWLEDGMENTS

Observations with telescopes of the SAO RAS are supported by the Ministry of Science and Higher Education of the Russian Federation. Updating of the instrument base is carried out within the framework of the national project ‘‘Science and Universities.’’

The work was carried out within the framework of the state task of the SAO RAS, approved by the Ministry of Science and Higher Education of the Russian Federation.

Funding

Authors acknowledge the support of Ministry of Science and Higher Education of the Russian Federation under the grant 075-15-2020-780 (N13.1902.21.0039).

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Correspondence to G. Sh. Mitiani.

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The authors declare no conflict of interest.

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Translated by T. Sokolova

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Mitiani, G.S., Makarov, D.D., Aitov, V.N. et al. Study of Nonlinearity and Statistics of Photons in BTA High-Resolution Fiber-Optic Spectrograph Images. Astrophys. Bull. 78, 100–104 (2023). https://doi.org/10.1134/S1990341323010066

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  • DOI: https://doi.org/10.1134/S1990341323010066

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